A flaw in Node.js’s Permissions model allows attackers to bypass `--allow-fs-read` and `--allow-fs-write` restrictions using crafted relative symlink paths. By chaining directories and symlinks, a script granted access only to the current directory can escape the allowed path and read sensitive files. This breaks the expected isolation guarantees and enables arbitrary file read/write, leading to potential system compromise.
This vulnerability affects users of the permission model on Node.js v20, v22, v24, and v25.
This vulnerability affects users of the permission model on Node.js v20, v22, v24, and v25.
Metrics
Affected Vendors & Products
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Advisories
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Fixes
Solution
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Workaround
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References
History
Tue, 20 Jan 2026 20:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw in Node.js’s Permissions model allows attackers to bypass `--allow-fs-read` and `--allow-fs-write` restrictions using crafted relative symlink paths. By chaining directories and symlinks, a script granted access only to the current directory can escape the allowed path and read sensitive files. This breaks the expected isolation guarantees and enables arbitrary file read/write, leading to potential system compromise. This vulnerability affects users of the permission model on Node.js v20, v22, v24, and v25. | |
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| Metrics |
cvssV3_0
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Projects
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MITRE
Status: PUBLISHED
Assigner: hackerone
Published:
Updated: 2026-01-20T20:41:55.393Z
Reserved: 2025-08-07T15:00:05.576Z
Link: CVE-2025-55130
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-01-20T21:16:03.177
Modified: 2026-01-20T21:16:03.177
Link: CVE-2025-55130
Redhat
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OpenCVE Enrichment
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Weaknesses
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